International Tomography Center

Research Activity

Experimental base

Cooperation

Recent Publications

Grants and awards

Contact Information

Staff:

• Igor V. Koptyug / Head of group.

• Ludmila Yu. Ilyina / Researcher.

• Anna A. Lysova / PhD student.

• Anatoliy V. Matveev / PhD student.

• Kirill V. Kovtunov / Graduate student.

• Julia S. Olshevskaya / Graduate student.

Research activities:

Development of the novel applications of Magnetic Resonance Imaging and spatially resolved NMR spectroscopy in chemical engineering and catalysts, including:

• studies of mass transport in porous materials (e.g., drying and water vapor sorption processes), including individual porous catalyst pellets, granular beds, monoliths, etc.;

• comparison of direct experimental data with conventional models of mass transport in porous solids and determination of quantitative parameters of mass transport based on the mathematical modeling of experimental data;

• studies of the flow and filtration of liquids, gases and granular solids in various channels and in porous media;

• in situ studies of catalytic reactions and of the interplay of mass and heat transport with chemical transformations (catalytic hydrogenation of unsaturated hydrocarbons, catalytic decomposition of hydrogen peroxide, Belousov-Zhabotinsky chemical oscillator).

Experimental techniques and equipment:

Magnetic Resonance Microimaging (MRM) experiments are carried out on a Bruker Avance-300 NMR spectrometer equipped with microimaging accessory capable of delivering gradient pulses of up to 100 G/cm. MRM studies can yield information about the spatial distribution of liquids and gases within any cross-section of the sample under study non-destructively (with spatial resolution of the order of hundreds or even tens of microns). Therefore, this method can be employed to study in situ the dynamics of mass transport in real time without interrupting the process under investigation. One of the advantages of MR imaging compared to other tomographic techniques is that it can spatially map not only the quantity of a substance, but also a broad range of other properties of the object under study and processes within it. Besides, NMR is a spectroscopic technique, therefore combining NMR and MRM techniques one can get access to the spatially resolved information on chemical composition (e.g., separate spatial distributions of the reactant and the product in a functioning reactor).

International cooperation:

• Boreskov Institute of Catalysis SB RAS, Novosibirsk ( http://www.catalysis.nsk.su )

• Kutateladze Institute of Thermophysics ( http://www.itp.nsc.ru/ )

• Wageningen NMR Centre, Wageningen University , The Netherlands ( http://ntmf.mf.wau.nl/invivonmr/ )

• The Pines Lab, Chemistry department, University of California at Berkeley, Berkeley , CA ( http://waugh.cchem.berkeley.edu )

• New Mexico Resonance nonprofit research corporation, Albuquerque , USA ( http://www.nmr.org/ )

• Universite Pierre et Marie Curie , France ( www.upmc.fr )

Recent Publications:

1. I.V. Koptyug, R.Z. Sagdeev, L.Yu. Khitrina, V.N. Parmon, "A nuclear magnetic resonance microscopy study of mass transport in porous materials", Appl. Magn. Reson., 2000, V. 18, pp. 13-28.

2. I.V. Koptyug, A.V. Matveev, S.A. Altobelli, "NMR studies of hydrocarbon gas flow and dispersion", Appl. Magn. Reson., 2002, V. 22, pp. 187-200.

3. I.V. Koptyug, L.Yu. Ilyina, A.V. Matveev, R.Z. Sagdeev, V.N. Parmon, S.A. Altobelli, "Liquid and gas flow and related phenomena in monolithic catalysts studied by 1 H NMR microimaging", Catal. Today, 2001, V. 69, pp. 385-392.

4. I.V. Koptyug, S.I. Kabanikhin, K.T. Iskakov, V.B. Fenelonov, L.Yu. Khitrina, R.Z. Sagdeev, V.N. Parmon, "A quantitative NMR imaging study of mass transport in porous solids during drying", Chem. Engng Sci., 2000, V. 55, pp. 1559-1571.

5. N.A. Chumakova, N.V. Vernikovskaya, M.M. Tokarev, I.V. Koptyug, L.Yu. Ilyina, Yu.A. Aristov, "Water vapor sorption-desorption in fixed bed of composite sorbent: the refinement of transfer parameters and sorption kinetics", Chem. Ing. Tech., 2001, V. 73, p. 776.

6. I.V. Koptyug, A.V. Kulikov, A.A. Lysova, V.A. Kirillov, V.N. Parmon, R.Z. Sagdeev, "Investigation of heterogeneous catalytic reactions by the in situ 1 H NMR microimaging", Chem. Sust. Dev., 2003, V. 11, pp. 109-116.

7. S.I. Kabanikhin, I.V. Koptyug, K.T. Iskakov, R.Z. Sagdeev, "Inverse problem for the diffusional transport of water upon single pellet moisture sorption", Int. J. Nonlinear Sci. Num. Simul., 2000, V. 1, pp. 31-41.

8. I.V. Koptyug, A.V. Kulikov, A.A. Lysova, V.A. Kirillov, V.N. Parmon, R.Z. Sagdeev, "NMR imaging of the distribution of the liquid phase in a catalyst pellet during alfa-methylstyrene evaporation accompanied by its vapor-phase hydrogenation", J. Amer. Chem. Soc., 2002, V. 124, pp. 9684-9685.

9. I.V. Koptyug, S.A. Altobelli, E. Fukushima, A.V. Matveev, R.Z. Sagdeev, "Thermally polarized 1 H NMR microimaging studies of liquid and gas flow in monolithic catalysts", J. Magn. Reson., 2000, V. 147, pp. 36-42.

10. I.V. Koptyug, V.B. Fenelonov, L. Yu. Khitrina, R.Z. Sagdeev, V.N. Parmon, "In situ NMR imaging studies of the drying kinetics of porous catalyst support pellets", J. Phys. Chem. B, 1998, V. 102, pp. 3090-3098.

11. I.V. Koptyug, L.Yu. Khitrina, Yu.I. Aristov, M.M. Tokarev, K.T. Iskakov, V.N. Parmon, R.Z. Sagdeev, "An 1 H NMR microimaging study of water vapor sorption by individual porous pellets", J. Phys. Chem. B, 2000, V. 104, pp. 1695-1700.

12. L.Yu. Khitrina, I.V. Koptyug, N.A. Pakhomov, R.Z. Sagdeev, V.N. Parmon, "An 1 H NMR microimaging visualization of hexachloroplatinate dianion redistribution within a porous gamma-Al2O3 pellet in the course of supported catalyst preparation", J. Phys. Chem. B, 2000, V. 104, pp. 1966-1970.

13. I.V. Koptyug, A.A. Lysova, V.N. Parmon, R.Z. Sagdeev, "In situ 1 H NMR imaging study of propagation of concentration waves in an autocatalytic reaction in a fixed granular bed", Kinet. Catal. Engl. Transl., 2003, V. 44, pp. 401-407.

14. I.V. Koptyug, L.Yu. Khitrina, V.N. Parmon, R.Z. Sagdeev, "NMR imaging of mass transport and related phenomena in porous catalysts and sorbents", Magn. Reson. Imaging, 2001, V. 19, pp. 531-534.

15. I.V. Koptyug, A.A. Lysova, A.V. Matveev, L.Yu. Ilyina, R.Z. Sagdeev, V.N. Parmon, "The NMR microimaging studies of the interplay of mass transport and chemical reaction in porous media", Magn. Reson. Imaging, 2003, V. 21, pp. 337-343.

16. I.V. Koptyug, R.Z. Sagdeev, "Modern applications of NMR tomography in physical chemistry. The characteristic features of the technique and its applications to studies of liquid-containing objects", Russ. Chem. Rev., 2002, V. 71, pp. 593-617.

17. I.V. Koptyug, R.Z. Sagdeev, "Applications of NMR tomography to mass transfer studies", Russ. Chem. Rev., 2002, V. 71, pp. 789-835.

18. I.V. Koptyug, R.Z. Sagdeev, "Non-traditional applications of NMR tomography", Russ. Chem. Rev., 2003, V. 72, pp. 183-212.

Grants and Awards:

Our research is currently supported financially by the Russian Academy of Sciences (RAS), Siberian Branch of RAS (SB RAS), Russian Foundation for Basic Research (RFBR), Russian Ministry of Education, Russian Science Support Foundation, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO, Netherlands Organization for Scientific Research), US Civilian Research & Development foundation (CRDF).

Contact information:

Magnetic Resonance Microimaging Group

International Tomography Center SB RAS
Institutskaya 3a
Novosibirsk 630090
Russia

tel. : +7(383)333-35-61
fax : +7(383)333-13-99
e-mail: koptyug@tomo.nsc.ru